VW Adaptive Cruise/Anti-Collision Radar - Nearly crashed!
Discussion
VeeFource said:
TwigtheWonderkid said:
Then you claim off his insurance, just as you would have done had you had to slam on the brakes for a child. One assumes he would have hit you then too.
Assuming he has insurance.Don't know about you but I don't fancy risking my pride and joy and not to mention my neck for the minor gains of a nannying safety system. Even if by some miracle the quality of the garage's work repairing it somehow manages to exceed the stingy payout of the insurance company, necks are a somewhat trickier to rebuild.
Some of the rubbish on here sounds like those old boys who won't wear a seatbelt because in 1956 their brother in law was thrown from the car in an accident and that's what saved their life!
TwigtheWonderkid said:
As pointed out by someone else on here, the system has saved them from crashing twice. It is far more likely to prevent an accident than cause one.
Oh come on. They would have had two accidents just since buying that car, were it not for this system? Really? 
They must have had a lot of crashes then...
That's obviously nonsense, unless they are the world's worst driver.
It is absurd to assume that just because an idea is new that it is therefore "progress". There are lots of systems like seat belts, ABS, airbags, stability control, blind spot warning systems, lane departure warning systems which have almost no conceivable material downside.
Whereas, a system that nails the brakes completely unexpectedly for no good reason (and not that infrequently, it seems), has a pretty obvious and significant downside.
boz1 said:
Whereas, a system that nails the brakes completely unexpectedly for no good reason (and not that infrequently, it seems), has a pretty obvious and significant downside.
Oh come off it. A few unsupported anecdotes on an internet forum and suddenly it's a danger to everyone and happens not that infrequently? Brake Assist systems have been on cars for years. You might as well say that ABS, brake-by-wire, and throttle-by-wire, are all dangerous because they can override the driver. ClockworkCupcake said:
You might as well say that ABS, brake-by-wire, and throttle-by-wire, are all dangerous because they can override the driver.
you might not find a lot of disagreement with thatWas it the VX220 that had a single channel ABS
If it detects the front left wheel slipping it not only removes braking to that but the front right too
Luckily the dual channel is reasonably available
ClockworkCupcake said:
boz1 said:
Whereas, a system that nails the brakes completely unexpectedly for no good reason (and not that infrequently, it seems), has a pretty obvious and significant downside.
Oh come off it. A few unsupported anecdotes on an internet forum and suddenly it's a danger to everyone and happens not that infrequently? Brake Assist systems have been on cars for years. You might as well say that ABS, brake-by-wire, and throttle-by-wire, are all dangerous because they can override the driver. To say it is bad is wrong. To say it is absolutely fine and has no ramifications is also wrong. As per usual the 'kill it with fire' mob and the 'bow to our new overlords' mob are both incorrect.
ClockworkCupcake said:
Oh come off it. A few unsupported anecdotes on an internet forum and suddenly it's a danger to everyone and happens not that infrequently? Brake Assist systems have been on cars for years. You might as well say that ABS, brake-by-wire, and throttle-by-wire, are all dangerous because they can override the driver.
We're not talking about brake assist here, which is simply where the system detects that you are braking hard and helps you out. This is where the system totally overrides your inputs based on sensors/cameras.Some less anecdotal food for thought:
1. A slightly different system, but Ford acknowledges that it could cause an accident by wrongly overriding the driver.
http://www.automotive-fleet.com/news/story/2015/09...
2. And another big recall of a similar system to to the Volvo one, by Honda:
https://www.washingtonpost.com/news/morning-mix/wp...
I think it's safe to say the the jury's out on whether these systems are really a net improvement and there's good evidence that they may not be.
http://www.automotive-fleet.com/channel/safety-acc...
etc.
But I'm sure the overall results are favorable with a lot of the running into the back of someone when they were looking to see what was coming at a roundabout and the person in front didn't go when expected or stalled etc. type accidents would be reduced. Or the bumps in stop start traffic when someone builds up a bit too much speed and doesn't see the queue stopping again. Still quite happy having a car without it and I probably wouldn't buy one with the system if I couldn't turn it off though I don't drive anywhere that has stop start traffic.
http://www.automotive-fleet.com/channel/safety-acc...
etc.
But I'm sure the overall results are favorable with a lot of the running into the back of someone when they were looking to see what was coming at a roundabout and the person in front didn't go when expected or stalled etc. type accidents would be reduced. Or the bumps in stop start traffic when someone builds up a bit too much speed and doesn't see the queue stopping again. Still quite happy having a car without it and I probably wouldn't buy one with the system if I couldn't turn it off though I don't drive anywhere that has stop start traffic.
http://www.automotive-fleet.com/channel/safety-acc...
boz1 said:
We're not talking about brake assist here, which is simply where the system detects that you are braking hard and helps you out. This is where the system totally overrides your inputs based on sensors/cameras.
Exactly. ABS, TC, ESP etc are all designed to assist the driver so that demands they are making on the car are met as effectively as possible. A car making it's own decision on whether to brake or not is a control system rather than an assisting system and is therefore not comparable.Chr1sch said:
Hi all,
Just looking for advice/thoughts here...
I've recently taken delivery of a Mk7 Gti, its bloody fantastic....one of the features is the adaptive cruise/anti-collision radar thing.
Anyway, merrily driving along yesterday, a Mk5 Fiesta I was following turned left (rather slowly in all fairness) and as it pulled off I accelerated away (rest assured I was NOT tailgating etc), anyway, next thing I know the car beeps and literally stands on its nose!
I mean it was a hugely aggressive stop, my daughter screamed, the car stopped dead and i must have been at least 5 meters away from the Fiesta and it was 80% off the road at that point.
Does this sound normal or should I be getting the garage to look at it urgently? If a car had been behind me it would, without doubt, have read ended me...
Any thoughts?
Sorry I'm 3 weeks late to this one.Just looking for advice/thoughts here...
I've recently taken delivery of a Mk7 Gti, its bloody fantastic....one of the features is the adaptive cruise/anti-collision radar thing.
Anyway, merrily driving along yesterday, a Mk5 Fiesta I was following turned left (rather slowly in all fairness) and as it pulled off I accelerated away (rest assured I was NOT tailgating etc), anyway, next thing I know the car beeps and literally stands on its nose!
I mean it was a hugely aggressive stop, my daughter screamed, the car stopped dead and i must have been at least 5 meters away from the Fiesta and it was 80% off the road at that point.
Does this sound normal or should I be getting the garage to look at it urgently? If a car had been behind me it would, without doubt, have read ended me...
Any thoughts?
My 5 series has done this once or twice, but at 2 metres or closer and quite slow speeds. I generally don't have the auto box on sport so if a slow left turn is made by the car I'm following it doesn't accelerate until the car has pretty much completed the turn. Biggest pain is that it will come to a complete stop (normal braking) a bit too soon and I have to manually press the throttle to prevent this. (First world problems and all.)
I have had bigger problems with the radar NOT picking up standing traffic and me having to do a very sharp stop if I'm not paying enough attention.
Kawasicki said:
SidJames said:
I have had bigger problems with the radar NOT picking up standing traffic and me having to do a very sharp stop if I'm not paying enough attention.
Sounds like the system in your 5 series is very relaxing to use.99.9% of the time it works well enough for me to do my e-mails.
Ok, I had a play around with my Golf tonight, and also read the manual.
Firstly, the City Emergency Brake Function is only active between 3mph and 19mph
Secondly, the radar is looking up to 10m ahead.
Thirdly, according to the manual, the system prepares the driver by flashing a warning and then sounds a tone.
Finally, the manual says that "if the driver does not react to a possible serious collision, the system can automatically stop the vehicle with brake pressure with increasing intensity".
So this says to me that if you see a car turning off and come off the throttle, and maybe are even rubbing the brakes just in case the car turning off is going to do something like stop dead with his arse hanging out into the road because he has to open a 5-bar gate, then you're probably not going to even activate the system as it will perceive you to be "reacting".
However, if you come bombing up behind someone expecting them to move out of the way and the system thinks that they aren't moving out of the way fast enough, then it may activate. But even then, my reading of the manual is that it isn't going to "slam the brakes on" as some posters have been suggesting.
I guess it's all down to driving style. If you have a fairly aggressive and pushy style, then maybe you're more prone to a false positive than a more predictive driver is. Who knows?
Finally, I can confirm that (on my 2013 Golf GT at least), you can disable Front Assist and it does not display a warning lamp on the dash if you do.
Firstly, the City Emergency Brake Function is only active between 3mph and 19mph
Secondly, the radar is looking up to 10m ahead.
Thirdly, according to the manual, the system prepares the driver by flashing a warning and then sounds a tone.
Finally, the manual says that "if the driver does not react to a possible serious collision, the system can automatically stop the vehicle with brake pressure with increasing intensity".
So this says to me that if you see a car turning off and come off the throttle, and maybe are even rubbing the brakes just in case the car turning off is going to do something like stop dead with his arse hanging out into the road because he has to open a 5-bar gate, then you're probably not going to even activate the system as it will perceive you to be "reacting".
However, if you come bombing up behind someone expecting them to move out of the way and the system thinks that they aren't moving out of the way fast enough, then it may activate. But even then, my reading of the manual is that it isn't going to "slam the brakes on" as some posters have been suggesting.
I guess it's all down to driving style. If you have a fairly aggressive and pushy style, then maybe you're more prone to a false positive than a more predictive driver is. Who knows?
Finally, I can confirm that (on my 2013 Golf GT at least), you can disable Front Assist and it does not display a warning lamp on the dash if you do.
Edited by ClockworkCupcake on Wednesday 27th January 18:02
My 2015 does display a warning lamp on the dash if I disable, so maybe that's something they changed. The seatbelt/ handbrake behaviour is also different on the newer ones, I can drive off and have it automatically release the brakes with no belt on, but on the earlier ones it won't allow you until you put your belt on.
Overall though all the systems are a great addition and work really well together. I was thinking today I drove home along the M25/ M4 semi-autonomously with ACC handling all the braking and acceleration, DSG doing the gear changes, drove up a particularly steep hill in stop/ start traffic and didn't once need to touch the handbrake thanks to Auto Hold then parked up in a tight space without needing to steer thanks to Park Assist
The only thing I'm missing really and slightly regret not specifying is Lane Assist!
Overall though all the systems are a great addition and work really well together. I was thinking today I drove home along the M25/ M4 semi-autonomously with ACC handling all the braking and acceleration, DSG doing the gear changes, drove up a particularly steep hill in stop/ start traffic and didn't once need to touch the handbrake thanks to Auto Hold then parked up in a tight space without needing to steer thanks to Park Assist
The only thing I'm missing really and slightly regret not specifying is Lane Assist!
va1o said:
My 2015 does display a warning lamp on the dash if I disable, so maybe that's something they changed. The seatbelt/ handbrake behaviour is also different on the newer ones, I can drive off and have it automatically release the brakes with no belt on, but on the earlier ones it won't allow you until you put your belt on.
Interesting. Yes, on mine if I manoeuvre the car in the driveway without the seatbelt on, I have to manually disengage the automatic handbrake. I guess they made a revision in the software sometime between yours and mine. va1o said:
Overall though all the systems are a great addition and work really well together. I was thinking today I drove home along the M25/ M4 semi-autonomously with ACC handling all the braking and acceleration, DSG doing the gear changes, drove up a particularly steep hill in stop/ start traffic and didn't once need to touch the handbrake thanks to Auto Hold then parked up in a tight space without needing to steer thanks to Park Assist
The only thing I'm missing really and slightly regret not specifying is Lane Assist!
Absolutely. I only have the manual, but otherwise my experience has been very similar to yours and the daily motorway grind has been hugely improved by my Golf. The fact that it can crawl at 5mph in 1st does help enormously in stop-start traffic in the local traffic at either end of my journey too, although I think if I were buying again I would look for a DSG auto like you have rather than a manual, but the car I bought was keenly priced and made sense to buy at the time. The only thing I'm missing really and slightly regret not specifying is Lane Assist!
Pommygranite said:
Terminator X said:
romeogolf said:
The car can't understand if a vehicle is turning off or not, just whether or not it's moving away from you or towards you and whether or not it's actually there. So the system sounds like it was working correctly.
If someone hit you, they were following too close.
So we need to leave a big enough gap to allow for people randomly emergency stopping for no good reason? If someone hit you, they were following too close.
TX.
TX.
Silverage said:
How does the ACC work with a manual box then? Does it prompt you to change gear as it slows or accelerates?
Yes. There is a little area of the display that might say "6->5" if it feels you need to change down. If it gets close to stall speed it will sound an alarm and a big "DEPRESS CLUTCH!" message pops up. Gassing Station | General Gassing | Top of Page | What's New | My Stuff